Physics Letters B最新文献_第10页

Non-linear equation of motion for higher curvature semiclassical gravity 高曲率半经典重力的非线性运动方程

IF 4.3 2区物理与天体物理

Physics Letters B Pub Date : 2025-02-01 DOI: 10.1016/j.physletb.2025.139264

Naman Kumar

{"title":"Non-linear equation of motion for higher curvature semiclassical gravity","authors":"Naman Kumar","doi":"10.1016/j.physletb.2025.139264","DOIUrl":"10.1016/j.physletb.2025.139264","url":null,"abstract":"<div><div>We derive the non-linear semiclassical equation of motion for a general diffeomorphism-invariant theory of gravity by leveraging the thermodynamic properties of closed causal horizons. Our work employs two complementary approaches. The first approach utilizes perturbative quantum gravity applied to a Rindler horizon. The result is then mapped to a stretched light cone, which can be understood as a union of Rindler planes. Here, we adopt the semiclassical physical process formulation, encapsulated by <span><math><mo>〈</mo><mi>Q</mi><mo>〉</mo><mo>=</mo><mi>T</mi><mi>δ</mi><msub><mrow><mi>S</mi></mrow><mrow><mi>g</mi><mi>e</mi><mi>n</mi></mrow></msub></math></span> where the heat-flux <span><math><mo>〈</mo><mi>Q</mi><mo>〉</mo></math></span> is related to the expectation value of stress-energy tensor <span><math><msub><mrow><mi>T</mi></mrow><mrow><mi>a</mi><mi>b</mi></mrow></msub></math></span> and <span><math><msub><mrow><mi>S</mi></mrow><mrow><mi>g</mi><mi>e</mi><mi>n</mi></mrow></msub></math></span> is the generalized entropy. The second approach introduces a “higher curvature” Raychaudhuri equation, where the vanishing of the quantum expansion Θ pointwise as required by restricted quantum focusing establishes an equilibrium condition, <span><math><mi>δ</mi><msub><mrow><mi>S</mi></mrow><mrow><mtext>gen</mtext></mrow></msub><mo>=</mo><mn>0</mn></math></span>, at the null boundary of a causal diamond. While previous studies have only derived the linearized semiclassical equation of motion for higher curvature gravity, our work resolves this limitation by providing a fully non-linear formulation without invoking holography.</div></div>","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"861 ","pages":"Article 139264"},"PeriodicalIF":4.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142989509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Kramers escape rate of phase transitions for the 6-dimensional Gauss-Bonnet AdS black hole with triple phases

IF 4.3 2区物理与天体物理

Physics Letters B Pub Date : 2025-02-01 DOI: 10.1016/j.physletb.2025.139282

Chen Ma , Pan-Pan Zhang , Bin Wu , Zhen-Ming Xu

引用次数: 0

Validity of black hole complementarity in an accelerating Schwarzschild black hole

IF 4.3 2区物理与天体物理

Physics Letters B Pub Date : 2025-02-01 DOI: 10.1016/j.physletb.2025.139293

Wontae Kim , Mungon Nam

引用次数: 0

EGUP corrected thermodynamics of RN-AdS black hole with quintessence matter

IF 4.3 2区物理与天体物理

Physics Letters B Pub Date : 2025-02-01 DOI: 10.1016/j.physletb.2025.139289

Baoyu Tan

{"title":"EGUP corrected thermodynamics of RN-AdS black hole with quintessence matter","authors":"Baoyu Tan","doi":"10.1016/j.physletb.2025.139289","DOIUrl":"10.1016/j.physletb.2025.139289","url":null,"abstract":"<div><div>Reissner-Nordström anti de Sitter (RN-AdS) black hole, characterized by electric charge and negative cosmological constant, exhibits a rich thermodynamics structure. In this paper, we consider the influence of quintessence, a hypothetical dark energy component with negative pressure. We have computed the extended generalized uncertainty principle (EGUP) corrections to the thermodynamics of RN-AdS black hole, including Hawking temperature, heat capacity, entropy function and pressure. Furthermore, as a special case of EGUP, we have computed and compared the result obtained from the generalized uncertainty principle (GUP) with those from the extended uncertainty principle (EUP). This work contributes to the understanding of the interplay between fundamental physics and the macroscopic properties of black holes, offering a novel perspective on the thermodynamics of RN-AdS black holes in the context of quintessence and quantum gravity corrections. More importantly, we found that, unlike in the case of the Reissner-Nordström (RN) black hole, the qualitative behavior for the RN-AdS black hole with quintessence remain largely unchanged, except for minor differences, at the equation of state parameters <span><math><msub><mrow><mi>ω</mi></mrow><mrow><mi>q</mi></mrow></msub><mo>=</mo><mo>−</mo><mn>1</mn><mo>/</mo><mn>3</mn></math></span> and <span><math><msub><mrow><mi>ω</mi></mrow><mrow><mi>q</mi></mrow></msub><mo>=</mo><mo>−</mo><mn>2</mn><mo>/</mo><mn>3</mn></math></span>. In addition, unlike RN black holes, the phase transition point of RN-AdS black holes shift to almost zero.</div></div>","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"861 ","pages":"Article 139289"},"PeriodicalIF":4.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143072390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Correspondence between grey-body factors and quasinormal frequencies for rotating black holes

IF 4.3 2区物理与天体物理

Physics Letters B Pub Date : 2025-02-01 DOI: 10.1016/j.physletb.2025.139288

R.A. Konoplya , A. Zhidenko

引用次数: 0

Search for the non-linearities of gravitational wave background in NANOGrav 15-year data set

IF 4.3 2区物理与天体物理

Physics Letters B Pub Date : 2025-01-27 DOI: 10.1016/j.physletb.2025.139284

Jun-Qian Jiang , Yun-Song Piao

引用次数: 0

Revisiting the proton-antiproton scattering using a constituent-quark-model based coupled-channels calculation

IF 4.3 2区物理与天体物理

Physics Letters B Pub Date : 2025-01-22 DOI: 10.1016/j.physletb.2025.139281

P.G. Ortega , D.R. Entem , F. Fernández , J. Segovia

{"title":"Revisiting the proton-antiproton scattering using a constituent-quark-model based coupled-channels calculation","authors":"P.G. Ortega , D.R. Entem , F. Fernández , J. Segovia","doi":"10.1016/j.physletb.2025.139281","DOIUrl":"10.1016/j.physletb.2025.139281","url":null,"abstract":"<div><div>Motivated by the last experimental and theoretical advances in the analysis of possible baryonium resonances, the <span><math><mi>X</mi><mo>(</mo><mn>1835</mn><mo>)</mo></math></span> and their partners, we perform a constituent-quark-model based coupled-channels calculation of the proton-antiproton scattering in order to analyze the possible existence of bound states or near-threshold structures. The used <span><math><mi>N</mi><mover><mrow><mi>N</mi></mrow><mo>‾</mo></mover></math></span> potential is derived from a <em>G</em>-parity transformation of the quark-model-based <em>NN</em> interaction which has described well deuteron properties, <em>NN</em> phase shifts, and even hadron-hadron phenomenology. The additional <span><math><mi>N</mi><mover><mrow><mi>N</mi></mrow><mo>‾</mo></mover></math></span> annihilation is taken into account by a complex phenomenological potential whose real part is generated by one-pion and one-gluon exchange annihilation potentials and its imaginary part is an energy-independent potential of Gaussian form. Then, all the parameters of the interaction are constrained by the <em>NN</em> sector except those determining the imaginary part of the annihilation potential. Our study concludes that the nucleon-antinucleon dynamics is complex and rich in scattering singularities near the proton-antiproton and neutron-antineutron thresholds.</div></div>","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"862 ","pages":"Article 139281"},"PeriodicalIF":4.3,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143072396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sketching pion and proton mass distributions

IF 4.3 2区物理与天体物理

Physics Letters B Pub Date : 2025-01-21 DOI: 10.1016/j.physletb.2025.139280

Xiaobin Wang (王晓斌) , Zanbin Xing (幸瓒彬) , Lei Chang (常雷) , Minghui Ding (丁明慧) , Khépani Raya , Craig D. Roberts

引用次数: 0

The inevitable quark three-body force and its implications for exotic states

IF 4.3 2区物理与天体物理

Physics Letters B Pub Date : 2025-01-20 DOI: 10.1016/j.physletb.2025.139278

Sungsik Noh , Aaron Park , Hyeongock Yun , Sungtae Cho , Su Houng Lee

{"title":"The inevitable quark three-body force and its implications for exotic states","authors":"Sungsik Noh , Aaron Park , Hyeongock Yun , Sungtae Cho , Su Houng Lee","doi":"10.1016/j.physletb.2025.139278","DOIUrl":"10.1016/j.physletb.2025.139278","url":null,"abstract":"<div><div>Three-body nuclear forces are essential for explaining the properties of light nuclei with a nucleon number greater than three. Building on insights from nuclear physics, we extract the form of quark three-body interactions and demonstrate that these terms are crucial for extending the quark model fit of the meson spectrum to include baryons using the same parameter set. We then discuss the implications of our findings for exotic configurations involving more than three quarks, such as the <span><math><msub><mrow><mi>T</mi></mrow><mrow><mi>c</mi><mi>c</mi></mrow></msub></math></span> and <span><math><msub><mrow><mi>χ</mi></mrow><mrow><mi>c</mi><mn>1</mn></mrow></msub><mo>(</mo><mn>3872</mn><mo>)</mo></math></span>. We find that the quark three-body interactions, which are valid at short ranges typical of a compact hadron, provide additional repulsion of more than 10 MeV for the compact configurations of both the <span><math><msub><mrow><mi>T</mi></mrow><mrow><mi>c</mi><mi>c</mi></mrow></msub></math></span> and <span><math><msub><mrow><mi>χ</mi></mrow><mrow><mi>c</mi><mn>1</mn></mrow></msub><mo>(</mo><mn>3872</mn><mo>)</mo></math></span>. Since most of the previous quark model calculations based on two-body quark interactions do not find the energies of compact configurations for the <span><math><msub><mrow><mi>T</mi></mrow><mrow><mi>c</mi><mi>c</mi></mrow></msub></math></span> and <span><math><msub><mrow><mi>χ</mi></mrow><mrow><mi>c</mi><mn>1</mn></mrow></msub><mo>(</mo><mn>3872</mn><mo>)</mo></math></span> to be as attractive as 10 MeV below the threshold, our results strongly suggest that these tetraquark states are unlikely to be compact states, leaving the molecular configuration as the likely viable option.</div></div>","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"862 ","pages":"Article 139278"},"PeriodicalIF":4.3,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143035240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Interaction between Unruh-Dewitt detectors exclusively due to acceleration: A parallel to the FDU effect

IF 4.3 2区物理与天体物理

Physics Letters B Pub Date : 2025-01-20 DOI: 10.1016/j.physletb.2025.139271

Wenting Zhou , Shijing Cheng , Hongwei Yu

引用次数: 0